John eichaeds



JOHN RICHARDS, oNoIN'oINNATLoEIIo.

Letters Patent No. 78,013, dated May 19, 186s.

IMPROVEMENT IN BEARINGS PoE s'EI'NDLEs.

@its tlgrhtle reirme tu iu Atime Estima atent :mt mating tart ni itstante.

To ALL wHoM Ir MAY GNCEEN: V

Be it known that I, JOHN RICHARDS, of Cincinnati, in the county ofHamilton, and State of Ohio, have invented a. new and improved Bearingfor spindles; and I do hereby declare the following to be a. fullandexact .description of the same, reference'being had to the accompanyingdrawings, inl which- Figure 1 is a front elevation of` one. of myimproved hearings. Figure 2 is a side elevationof the same; and Figure 3a vertical section through figs. 1 and 2, Similar letters of referenceon the different iigure's indicate corresponding parts. j l The natureof my invention consists in a point or step-bearing, having a readymeans of adjusting to cempensate wear, and in a lubricating-cell at theend of the spindle, all as hereinafter-described.`

l Step or point-bearings for vertical spindles and lathe-spindles haveheretofore been constructed solid, and without vmeans of compensatingfor wear. Should the spindle wear away the bearing on the sides, it hadto be renewed; and if thepoint'wore down faster than the sides, thespindle became tight inthe socket. The

bearing illustrated is intended to obviate these diiculties and allow ofa ready adjustmentto compensate for wear, and to have all advantagesofa. common journal-box in this urespect, while the spindle can, by th'e'same mechanism, be adjusted to dierent positions or heights to suit therequirements of shaping-machines or mouldingmachines.

To enable ,others skilled in the art to make and use my invention, Iwill describe' the manner of constructing the same, yand the 'mode ofits operation, referring to the drawings, and the letters efrefereneemarked thereon.

a is a bracket, for supporting the step or bearing; is simply a shell of iron, bored out to receive the adjustable sleeve b, and may berepresented by the main casting of the machine, or a portion of theframe of o. common lathe. Y' i i i n c is a portion of ,a spindleinserted in the bearing.

e is a. hardened steel pressure-screw, on which'the spindle rests, ifvertical', and when used on a lathe receives the thrust of the workAagainst the end of the spindle.

Vel is an adjusting-screw, for raising or--lowering the spindle, and isalso used for tightening the bearing,

as will hereinafter be described.

o, fig. 3, is a common set-screw, for holding the sleeve b. l

n, g. 3, shows an oil-cell or chamber, in which the point of the spindleis at all times immersed.

`s; dgn-3, shows the soft metal lining of the sleeve b.

v'lo adjust `the spindle, the screw o isloosed, `and the `sleeve b, withthe'spindle c, is moved by the screw d, as will be readily understood. Y

To tighten the bearing, the step-screwe is backed out. Thespindlebeingfixed, the sleeveb is moved-up by means of the screw al, and the spindlebeingtapered, as shown, comes to a perfect fit in` the sleeve, thuscompensating for wear, and preserving a true cylindrical bearing, and`calculated to withstand end-thrust `nr weight,'and maintain a'perfectlubrication by means of the cell 1t, lig. 3.

Having thus described the nature of my invention, what I regard as new,and desire to secure by Letters Patent, is Y l 1. The adjustable sleeveb, in combination with tho screw e, for,` adjusting the spindle c todiiferent'positions in the socket, substantially as and for the purposesspecified. l i

2. I claim the oil-cell n, in combination with sleeve bV and scrcwae,operating .together'n the manner and for the'purposcs set forth. 4 I A i3. I claim the adjusting-.screw d; inV combination with the sleeve b andscrew c, for adjusting the sleeve b, and spindle c, substantially asspecified.

4. I claim the sleeve b, screws e and d, together with thelubricating-cell n, when combined and operating in the mannerand for theseveral purposes as specified.

' JOHN RICHARDS.

Witnesses:

DAN. L. Lyon, W. S. KELLEY.

